From 4aafb8ab2a626ac714931ec7894cf16df948b359 Mon Sep 17 00:00:00 2001 From: Cosmin Ratiu Date: Thu, 4 Apr 2024 20:33:54 +0300 Subject: net/mlx5e: Support FEC settings for 100G/lane modes This consists of: 1. Expose the 100G/lane capability bit in the PCAM reg. 2. Expose the per link mode FEC capability masks in the PPLM reg. 3. Set the overrides according to ethtool parameters. FEC for new modes is set if and only if the PCAM 100G/lane capability is advertised and the capability mask for a given link mode reports that it can accept the requested FEC mode. Signed-off-by: Cosmin Ratiu Reviewed-by: Gal Pressman Signed-off-by: Tariq Toukan Link: https://lore.kernel.org/r/20240404173357.123307-3-tariqt@nvidia.com Signed-off-by: Jakub Kicinski --- include/linux/mlx5/mlx5_ifc.h | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) (limited to 'include/linux/mlx5/mlx5_ifc.h') diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h index cc159d8563d1..35ffc9b9f241 100644 --- a/include/linux/mlx5/mlx5_ifc.h +++ b/include/linux/mlx5/mlx5_ifc.h @@ -9817,7 +9817,21 @@ struct mlx5_ifc_pplm_reg_bits { u8 fec_override_admin_100g_2x[0x10]; u8 fec_override_admin_50g_1x[0x10]; - u8 reserved_at_140[0x140]; + u8 fec_override_cap_800g_8x[0x10]; + u8 fec_override_cap_400g_4x[0x10]; + + u8 fec_override_cap_200g_2x[0x10]; + u8 fec_override_cap_100g_1x[0x10]; + + u8 reserved_at_180[0xa0]; + + u8 fec_override_admin_800g_8x[0x10]; + u8 fec_override_admin_400g_4x[0x10]; + + u8 fec_override_admin_200g_2x[0x10]; + u8 fec_override_admin_100g_1x[0x10]; + + u8 reserved_at_260[0x20]; }; struct mlx5_ifc_ppcnt_reg_bits { @@ -10189,7 +10203,9 @@ struct mlx5_ifc_mtutc_reg_bits { }; struct mlx5_ifc_pcam_enhanced_features_bits { - u8 reserved_at_0[0x68]; + u8 reserved_at_0[0x48]; + u8 fec_100G_per_lane_in_pplm[0x1]; + u8 reserved_at_49[0x1f]; u8 fec_50G_per_lane_in_pplm[0x1]; u8 reserved_at_69[0x4]; u8 rx_icrc_encapsulated_counter[0x1]; -- cgit v1.2.3